Glyfair said:OK, after some searching here is a ruling from the Sage that indirectly covers it.
"Bludgeon: Exactly how many spells can a PC with the Scribe Scroll feat write on a scroll?
The Sage: As many as that PC has the time, cash, and experience to write. There's little reason to ever put more than one spell on a single scroll, though. "
If putting more scrolls on a single scroll allowed it to take less time than putting them on mutiples scrolls, then that certainly would be considered a major reason.
[snip ]
No, it indicates that the Sage does not consider the time difference to be a major reason.
The effect of the time requirements on magic item creation varies greatly from campaign to campaign. In some campaigns, getting the 8 hours to cast an Identify or Analyze Dweomer is a major problem. In other campaigns, there is little difference between spending one day or a week on a project.
Considering some of the time requirements for other things in the rules, I could easily see the Sage not considering a difference of a couple days time being important.